Refrigerator



FIG. 1 is a top front perspective view of a refrigerator showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another top front perspective view thereof, showing the refrigerator with a removable and transparent upper panel.

The broken lines in FIGS. 1-8 of the drawings show unclaimed environment only and form no part of the claimed design. 

CLAIM The ornamental design for a refrigerator, as shown and described. 